naim uniti atom flashing power light

[derumonto]

The light on the power button blinks in the order of 4-2-7. Why? The power is not working.

[robert_h]

Atom start up problem

It’s telling you there is a hardware problem, unfortunately. Sometimes these are a one off event that a hard reset resolves, but it can also be permanent - I suggest getting in contact with Naim support and/or your Naim dealer. xref here